核化速率 的英文怎麼說
中文拼音 [héhuàsùlǜ]
核化速率
英文
rate of nucleation-
For electrodeposition by dc methods, the metals deposite uninterrupted and the particles were also embeded uninterrupted into the coatings ; for electrodeposition by pc method, the particles with biggish volume were desorbed from the coatings and returned to the electrolyte again owing to the presence of pulse interval ; for electrodeposition by prc method, the particles carried positive charges are much more easy to desorb from the coatings owing to the effecf of reverse pulse current combined with pulse interval, in addition, the reverse pulse current also could dissovle the metals, further accelerates the desorption of particles, thus the particles size embeded in the coatings by prc method is the least
直流電沉積時，基質金屬的沉積連續進行，粒子在電極表面不間斷嵌入鍍層;單脈沖電沉積由於脈沖間歇的存在使得具有較大體積的粒子會脫附，重新回到溶液中;採用周期換向脈沖時，反向脈沖電流使表面荷正電的較大的粒子更易從電極表面脫附，同時，反向脈沖電流對基質金屬的溶解作用，也會促進粒子的脫附，因此鍍層中復合粒子尺寸最小。隨著鍍層中粒子復合量的增加，三種鍍層的晶粒都明顯細化，說明al _ 2o _ 3的存在阻止了晶粒的長大，提高了電沉積過程中晶核的形成速率。The thesis developed the optimization design software of geometric parameter for the worm gear including strength check module, the drawing contact lines module, the change lines of tooth thickness of worm, and the parametric modelling software for the reducer which includes parametric modelling of parts and assembly. the cad prototype system is very convenient because of its accessible interfere, simple operation and written in chinese. by input design parameters ， the cad system can make optimization design and strength check for the worm gear ， draw contact lines of tooth flank of worm - gear and change line of tooth thickness of worm ， judge if the tooth flanks of worm undercut and if the sideward tooth of worm - gear hob come to a point ， make project design and structure design for the reducer and draw its 2d parts and assembly
研究和開發了平面二次包絡環面蝸桿傳動的參數優化設計和校核軟體系統：包括幾何參數設計計算模塊，強度校核模塊，繪制齒面接觸線模塊，蝸桿齒厚變化曲線模塊和蝸桿根切判別模塊；開發了平面二次包絡環面蝸桿減速器外形與結構尺寸數據庫以及傳動效率數據庫，建立了平面二次包絡環面蝸桿傳動公差及極限偏差數據庫；開發了平面二次包絡環面蝸桿減速器參數化建模軟體：包括零部件的參數化建模模塊和裝配圖的參數化建模模塊，其中零部件的參數化建模包括蝸桿軸系的參數化建模、蝸輪軸系的參數化建模、箱體的參數化建模、端蓋的參數化建模、軸承的參數化建模和其它零部件的參數化建模軟體模塊。The results from x - ray diffraction demonstrated that pp / mmtome was a fully intercalated nanocomposite, pp / mmtom and pp / ommt were partly intercalated nanocomposites, but the intercalation effect of pp / mmtom nanocomposite was better ; the crystallization characteristics of pure pp and pp / mmt nanocomposites were investigated by dsc, waxd and pom. the result of these testing showed that mmt nano - layers acted as nucleating agents for the crystallization of pp, the addition of mmt had effect on the crystallization process, leading the increasing of crystallization temperature crystallization rate and crystallinity, but also the dimension of spherulite reduced. but the formation of pp crystal did n ' t change, the formation of pp crystal in three pp / mmt nanocomposites and pure pp were a - form on the whole ; influences of three sorts of mmt on mechanical properties of pp / mmt nanocomposites were studied, as a result, the addition of mmt comprehensively improved mechanical properties of pp : notched impact strength, tensile strength and flexural properties were all increasing, but the extent of increasing were n ' t large
通過xrd分析比較這三種pp mmt納米復合材料微觀結構得到， pp mmt _ （ ome ）屬于完全插層， pp mmt _ （ om ）與pp ommt的插層程度相近，但是pp mmt _ （ om ）相對較好；通過對純pp和三種pp mmt納米復合材料的結晶性能研究發現，蒙脫土納米片層對pp結晶產生明顯的異相成核作用，結晶能力增強，使pp的結晶溫度和結晶速率提高，結晶度增加，球晶晶粒細化，但是沒有改變pp的結晶形態，三種pp mmt納米復合材料的結晶形態都屬于晶；通過對pp mmt納米復合材料的力學性能測試得知，蒙脫土的加入全面提高了pp的力學性能，缺口沖擊強度、拉伸強度和彎曲性能都有一定程度的提高，浙江{ _業大學碩十學位論文摘要但是提高幅度都不是很大，不過ommt 、 mmtom和mmtc ） me三種蒙脫土對pp力學性能有著不同的改性作用，其中pp / mmtom最好， pp月邊mto崛次之， pp / ommt最低，這種情況主要是由蒙脫土對pp結晶性能的影響和蒙脫土的納米改性作用造成的。They include : a aluminium tank for underwater weighing, spirometers, an on - line data acquisition system for evaluating respiratory gas exchange, a heavy duty, over - sized treadmill, mechanically braked and electrically braked cycle ergometers, automated blood chemistry analysers, telemetry heart - rate monitors, core temperature monitoring system, and ibm compatible and macintosh computers
這些儀器包括水下稱重測試系統、肺活量計、即時呼吸系統分析儀、加長跑臺、功率自行車、自動血液生化分析儀、遙感心率表、體內核心溫度監測儀、 actigraph加速度計、 mrx標儀、以及相應的電子電腦設備。In this paper, the course of isothermal crystallization kinetics of polymer in limited volume unit is simulated by use of the method of monte carlo. four factors influenting on the course of polymer in the limited volume unite isothermal crystallization are analyzed under the given conditions. the four factors are sample volume shrinkage, the change of the linear growth rate of entities g, the change of sample thickness and the change of the number of nuclei
本文採用montecarlo方法研究了高聚物在有限體積元中的等溫結晶動力學過程，分析了在一定條件下，樣品體積收縮、晶體線生長速率變化、樣品厚度變化和晶核數目變化這四種因素對高聚物在有限體積元中的等溫結晶過程的影響。The " allowed " electric dipole ( el ) transitions will encounter strong competition from " forbidden " transitions, i. e. magnetic dipole ( ml ), electric quadruple ( e2 ) and other higher order transitions, the transitions rates for the forbidden decay scale with higher powers of z than those of el transitions, the effects of quantum electrodynamics ( qed ) also scale with higher power of z. accelerator - based beam - foil spectroscopy ( bfs ) is an important method for spectroscopic studies of highly ionized atoms
在高離化態原子中，磁相互作用明顯增強， 「允許的」電偶極（ e1 ）躍遷將遭到來自磁偶極（ m1 ） 、電四極矩（ e2 ）和其它高次的「禁戒」躍遷的強烈競爭，禁戒躍遷幾率隨核電荷數z增加而迅速增加，此外量子電動力學效應也隨著z增加而增強。Telecommunication operation support system oss / bss on generalized makes a reference all it system forms together the comprehensive telecommunication service operation and manage platform which support telecommunication operation business operation management, it is the scientific and timeliness key of comprehensive promotion of enterprise operation efficiency, reducing the cost, the enhancing enterprise core of competitive power and the management decision - making, it is the important method of telecommunication operation business starting the service fast, safeguarding service prompt, optimizing management network resources, and is an inalienable part of the telecommunication network operation management
電信業務運營支撐系統（ oss / bss ） ，廣義上泛指支撐運營商運營管理的所有it系統一起形成的綜合電信業務運營和管理平臺，它是全面提升企業運營效率、降低成本、增強企業核心競爭力、管理決策的科學性和及時性的關鍵，是電信運營商快速開通業務、及時保障業務、優化管理網路資源的重要手段，是電信網路運營管理不可分割的一部分。Aimed at design index of input power 1. 5kw, most output rotate velocity 300rpm, and rating output rotate velocity 150rpm, considering factors of angle and ratio of transmission, on the basis of kinematics simulation, author optimized the kinematics parameters. in this paper, author has made some analysis and study to the primal assembly condition of transformer ' s sequential action in theory, designed structure dimension of the input and output transformer, and verified the corresponding strengthen. further, the structure, which is to key transmission components of velocity control system of the speed regulator, has been designed based on meeting operational sensitivity, precision and self - locking
本文針對輸入功率為1 . 5kw ，最大輸出轉速，額定輸出轉速的無級變速器的設計要求，並考慮到傳動角及變速比等因素，在運動學模擬的基礎上，對運動學參數進行了優化；本文對變換器連續作用的初始裝配條件進行了理論分析與研究，對輸入、輸出變換器作了結構尺寸的設計，並進行了強度校核計算；本文還對變速器調速系統中主要傳動構件在滿足操作的靈敏度、精度、自鎖性的基礎上進行了結構設計；最後採用workingmodel3d軟體，進行虛擬樣機的計算機輔助模擬設計及運動學和動力學計算。The effects of coal types, temperature and ash content in coal on the char gasification with co2 were examined
用隨機孔模型模擬北宿煤反應速率與碳轉化率的關系曲線，與未反應芯縮核模型和混合模型模擬結果比較。Main content in simulation is the spatio - temporal evolution of the set of descriptive variables characterizing tectonic mineralization state under coupling of various processes as following : ( 1 ) variables related to forming and property of ore - forming fluid, such as dissolution rate of minerals ( include metal minerals ) in rock, concentration and saturation of aqueous species in fluid, temperature, pressure, and ionic strength etc. ; ( 2 ) variables related to structural deformation and fluid flow, such as stress, deformation rate, fracture network, porosity, fracture permeability ; ( 3 ) variables related to precipitation and mineralization, such as nucleation rate of gangue and metal minerals, accumulation precipitation of various minerals, etc. ; ( 4 ) spatio - temporal coupling relation of various variables above, such as the coupling relationship between spatio - temporal evolution of fracture permeability and flow and focus of fluid and ore - forming
模擬的主要內容是在各種過程耦合作用下，以下描述構造成礦體系的主要變量的時空演化：與成礦流體的形成和性質有關的變量，如地層中礦物（包括成礦物質）的溶解速率、流體中各組分的濃度與飽和度、流體溫度、壓力、離子強度等；與構造變形和流體運移有關的各變量，如應力與變形速率、巖石孔隙度、構造（斷裂）滲透率等；與沉澱成礦有關的變量，如礦物（金屬礦物和脈石礦物）的成核速率、各礦物的沉澱量等；上述各有關變量間的時空耦合關系，如斷裂滲透率時空演化與流體流動、匯聚和成礦的耦合關系等。This paper is based on summarizing and analyzing the correlative work. it introduces the speed of the uniform flow closing to the dynamical field in the factual cloud to the answer of the probability equation of the catalyst particle remains in the cloud of nucleation layer, ameliorates the answer of the equation which does n ' t consider the uniform flow evidently
本論文在總結分析已有相關工作的基礎上，對催化劑粒子在雲中核化層存留概率方程解中，引入了和實際雲中動力場相近的均流速度，明顯改進了過去不考慮均流的概率方程解。The wxrd characterization showed that o - mmt possessed obvious nucleation effect on the crystallization process of b - pp. jeziorny and mo methods were used to study the non - isothermal crystallization process. the obtained value of kinetics parameters such as tp, n, zc, t1 / 2, a h, f ( t ), e showed that the o - mmt has nucleation effect in crystallization of pp and can increases the crystallization temperature of pp, quickens the crystall ization velocity, decreases the crystallization activation energy of pp but decreases the crystallization degree of pp at the same time
運用jeziorny法和mo法研究了聚丙烯和復合材料的非等溫結晶過程，所得到的非等溫結晶過程動力學參數t _ p ， n ， z _ c ， t _ （ 1 / 2 ） ， h ， f （ t ） ， e的數值表明，有機蒙脫土的加入可以起到異相成核的作用，從而提高pp的結晶溫度，加快pp的結晶速率，降低pp的結晶活化能，但同時也會降低pp的結晶度。The observing ground satellites of modem time have higher resolving power, so that they require ground station system with more performance accordingly. as the key device of ground station system, high - speed frame - synchronizer needs to have higher performance also. high - speed frame - synchronizer not only is required higher speed but also requires to be used for more kind of satellites
現代軍事和民用對地觀察衛星的分辨力越來越高，因此對地面站系統的性能的要求也越來越高，而對作為衛星地面站的核心關鍵之一的幀同步格式化器的要求當然也是越來越高，不僅對速率的要求提高了很多，還要求其能應用於多種衛星。The researchers found that the rate at which nucleotides changed in tropical species was more than twice that found in species from temperate latitudes
研究人員發現熱帶植物的核苷酸變化速率比溫帶地區植物中核苷酸的變化速率高出兩倍多。The evolutionary rate of ribosome dna is more fast and only suit to the phylesis between genus and species
核糖體dnaits序列進化速率更快，只能用於屬間和種間分類群的研究。Comparatively, the evolutionary rate of proteins coded by the nuclear genes is four or five times as fast as the rate of the two formers
與它們相比，核編碼蛋白基因的進化速率分別快4 5倍和12 15倍。Recent data have demonstrated that the tails of histones h3 and h4 greatly reduce the speed of transcript elongation through a nucelosome, and tail acetylation suppresses this effect
近來研究表明組蛋白尾部尤其是h3 、 h4四聚體的尾部強烈影響通過核小體的轉錄延伸速率，而尾部的乙酰化修飾可抑制這種影響。Recently, human elongator complexes have been isolated. the human complex is a fragile six - subunit complex that interacts with rnap ii and has hat activity directed against histone h3 and h4. depletion of elongator from hela nuclear extracts reduces the ability of these extracts to transcribe chromatin templates, providing biochemical support for the proposed role of elongator during transcript elongation in chromatin
近來人elongator也被分離，它也是個不穩定的六亞基復合物，可與rnap相互作用，具有hat活性，能乙酰化h3和h4 ，在hela細胞核抽提物中去除elongator可降低抽提物對染色質模板的轉錄延伸速率，提供了該復合物在染色質為模板的轉錄延伸中有功能的生化證據，但是上面的信息都來自體外研究。The results show that in the later stage of the nucleation process, the maximum slip velocity is monotonically accelerating ; the slipping hot spot ( where the slip rate is maximum ) migrates spontaneously from a certain instant, and such migration is spatially continuous ; when the maximum velocity reaches a detectable order of magnitude ( at least one order of magnitude greater than the loading rate ), the remaining time is 20 hours or more, and the temporal variation of slip velocity beyond this point may be used as a precursory indicator ; the average slip velocity is related to the remaining time by a log - log linear relation, which means that a similar relation between rate of microseismicity and remaining time may also exist ; when normal stress variation is taken into account, time scale of such processes can be extended by about 2 times
結果表明，在成核的後期階段：最大位移速率單調加速增加；滑動熱點（最大滑動速率處）在後期階段開始自發性遷移，且在空間上連續；當最大滑動速率達到可以明顯探測的量級時（高於載入速率一個數量級以上） ，倒計時間為20小時或更長一些，這時的速率變化可作為臨震預測標志；平均滑動速率與倒計時間的關系在臨震階段呈對數線性趨勢，由此可推測微震活動增長率與倒計時間同樣存在對數線性關系；正應力的變化對上述時間尺度有延長作用，使之大致增加到原數值的2倍。The results show that the capacity and rate of alka - line absorption is respectively 10 percent more than that of american products, and twice as fast as that of them. the resista - nce is as good as that of them, and the electric property is better than that of them, but the tensile strength is not so good as that of them
研究制備的氧化鋯纖維布作為大容量鎳氫電池隔膜，組裝成電池進行實效考核表明，可以用於鎳氫電池隔膜;性能測試表明，吸堿率比美國產品高10 ，吸堿速率是美國產品的2倍，電性能優於美國產品。分享友人